The Use of Large Tankers in Seasonal First-Year Ice and Severe Sub-Zero Conditions

The Use of Large Tankers in Seasonal First-Year Ice and Severe Sub-Zero Conditions

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The Use of Large Tankers in Seasonal First-Year Ice and Severe Sub-Zero Conditions

With
the changes that have occurred in the Russian Federation, the tanker
market has experienced an increase in the export of crude oil by large
tankers from Baltic terminals impacted by the potential for winter ice
navigation. This trend has continued elsewhere in the

world
as crude export terminals have been established or are planned in other
ice navigation areas, such as the Barents Sea, White Sea and in
proximity to Sakhalin Island (Eastern Russian Federation).

Some
sectors of the industry have been used to dealing with the more
traditional high ice class, smaller tankers designed specifically for
escorted or unescorted ice transit. What is relatively new to the
industry is the increase in demand for larger-sized crude tankers of
low, or no, ice class to trade out of an increasing number of ports
subjected to first-year ice formation.

Areas
commonly affected by first-year ice include the Baltic Sea, White Sea,
Barents Sea, the Eastern coast of Canada, Cook Inlet and in the
proximity of Sakhalin Island in the Eastern Russian Federation.

The
guidance is primarily aimed at the use of low, or no, ice class
tankers, from 50,000 tonnes deadweight upwards, likely to encounter
first-year ice. The document does not address established or specialised
ice trades utilising high ice class tonnage.

It
is recommended that charterers limit the use of low, or no, ice class
ships in ice covered areas and nonwinterised ships during severe
sub-zero temperature conditions. For the purpose of this document,
‘severe sub-zero’ conditions are defined as forecasted daily mean
ambient temperatures below -15°C.